"You Doin' a Work in Me" is a song recorded by American singer-songwriter and record producer Marian Renta released as a single on June 5, 2026. The single's release was accompanied by the song's music video which features Renta singing and dancing freely in a rehearsal room. "You Doin' a Work in Me" is a downtempo, early R&B groove heavily modeled after the 1960s Motown sound. A Christian Gospel Blues ballad, the song showcases highly soulful Blues vocals by Renta and makes use of a brass section, upright bass, and tinkling piano laid overtop a slow shuffle groove. Written, composed, and arranged by Renta, the song's lyrics share Renta's testimony as she reflects on her life before coming to Christ. She proceeds to acknowledge the growing pains of spiritual growth in Christ, and she expounds on the mysterious nature of God's work in the hearts of believers. "You Doin' a Work in Me" was produced, mixed, and mastered by Renta at her recording studio MixFire Studios in New York.